ACM charged me to publish. After I'd written the paper and after their peer review process which was not convincingly value adding, but it was something like $1

ACM charged me to publish. After I'd written the paper and after their peer review process which was not convincingly value adding, but it was something like $100 so I paid it. Overall experience makes it likely I'll just post to arxiv instead next time. (In fairness that fee did nominally grant access to read other papers by them as well, but the credentials they sent out didn't let me log in and I didn't bother contacting them to resolve it)